Q.1
DFS stands for what?
  • Distributed File System
  • Deputed File System
  • Disk File System
  • Drive File System
Q.2
The command “hadoop fs -test -z URI “ gives the result 0 if
  • if the path is a directory
  • if the path is a file
  • if the path is not empty
  • if the file is zero length
Q.3
What is HDFS?
  • Storage layer
  • Batch processing engine
  • Resource Management Layer
  • None of the above
Q.4
Hadoop Framework is written in
  • Java
  • scala
  • python
  • c++
Q.5
Which type of data Hadoop can deal with?
  • Structured
  • Semi-Structured
  • Unstructured
  • All of the above
Q.6
The source of HDFS architecture in Hadoop originated as
  • Google distributed filesystem
  • Yahoo distributed filesystem
  • Facebook distributed filesystem
  • None of the above
Q.7
A file in HDFS that is smaller than a single block size
  • Cannot be stored in HDFS.
  • Occupies the full block's size.
  • Occupies only the size it needs and not the full block.
  • Can span over multiple blocks.
Q.8
Hadoop can be deployed on Commodity Hardware?
  • True
  • False
Q.9
Which of the following statements is not a characteristic of hadoop?
  • Robust
  • Suitable for Big Data Analysis
  • Scalability
  • Fault Tolerance
Q.10
The Hadoop tool used for uniformly spreading the data across the data nodes is named −
  • Scheduler
  • Balancer
  • Spreader
  • Reporter
Q.11
Output of the mapper is first written on the local disk for sorting and _________ process.
  • shuffling
  • secondary sorting
  • forking
  • reducing
Q.12
___________ part of the MapReduce is responsible for processing one or more chunks of data and producing the output results.
  • Maptask
  • Mapper
  • Task execution
  • All of the mentioned
Q.13
A ________ serves as the master and there is only one NameNode per cluster.
  • Data Node
  • NameNode
  • Data block
  • Replication
Q.14
Which of the following allows to secure remote command line access?
  • telnet
  • SSL
  • SSH(Secure Shell)
  • Rlogin
Q.15
What is a Metadata in Hadoop?
  • Data stored by user
  • Information about the data stored in datanodes
  • User information
  • None of these
Q.16
A process can run only in the background
  • True
  • False
Q.17
Hadoop framework is written in which language ?
  • Python
  • C
  • Java
  • Go
Q.18
Expand JVM What is its full form
  • JAVA VIRTUAL MACHINE
  • JAVA VARIABLE METHOD
Q.19
There are almost as many bits of information in the digital universe as there are stars in the actual universe?
  • True
  • False
Q.20
Which of the following are false about Hadoop?
  • Hadoop works in Master-Slave fashion
  • Master & Slave both are worker nodes
  • User submit his work on master, which distribute it to slaves
  • Slaves are actual worker node
0 h : 0 m : 1 s